lguest: cleanup for map_switcher()
We can use alloc_page() instead of get_zeroed_page() and virt_to_page() Signed-off-by: Xiao Guangrong <xiaoguangrong@cn.fujitsu.com> Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
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1 changed files with 2 additions and 3 deletions
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@ -67,12 +67,11 @@ static __init int map_switcher(void)
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* so we make sure they're zeroed.
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* so we make sure they're zeroed.
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*/
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*/
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for (i = 0; i < TOTAL_SWITCHER_PAGES; i++) {
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for (i = 0; i < TOTAL_SWITCHER_PAGES; i++) {
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unsigned long addr = get_zeroed_page(GFP_KERNEL);
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switcher_page[i] = alloc_page(GFP_KERNEL|__GFP_ZERO);
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if (!addr) {
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if (!switcher_page[i]) {
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err = -ENOMEM;
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err = -ENOMEM;
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goto free_some_pages;
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goto free_some_pages;
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}
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}
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switcher_page[i] = virt_to_page(addr);
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}
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}
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/*
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/*
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